IWG2.5B-li Sapphire Diaphragm Wireless Remote Control Intelligent Household Gas Meter

Power supply

DC6V (4 5 # batteries / 6V lithium batteries), the service life: dry batteries ≥ 10 months, lithium batteries is optional

Type

G1.6/G2.5/G4

Measurement grade

B grade

Power-down data retention time

≥10 years

Measurement signal

Reed pulse, direct reading module signal

Wireless communication frequencies

Using the ISM-470MHZ frequency band, no need to apply  new frequency, in line with the Authority’s technical requirements of micro-power on short distances

Modulation

GFSK

Transmit Power

10mW-50mW

Receiver sensitivity

-112dBm

Wireless communication rate

9600bps

Wireless communication distance

1.2 km, open area (no shelter)

Current

Static current:≤15uA

Data Security

8-bit and checking & encryption algorithms, secure and reliable data transmission

Working environment

Temperature:  -25°C ~ 70°C,relative humidity: RH≤93%

Design Reference Standards

- "GB/T6968-2011 Diaphragm Gas Meters"
- JG/T162-2009 "residential remote transmission system"
-CJ/T188-2004 "household meters data transmission technical conditions"

- "Micro-power (short distance) radio equipment Interim Regulations"

Maximum reading

99999.999m³

Minimum reading

0.001m³

Air tightness

≤15Kpa no leakage